Our ear has three media throughout which sound propagates Discus with your friends as to whether the above statement is five
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Answers
Explanation:
The ear is the human organ that enables us to hear sounds around us. The main function of the ear is to maintain our sense of balance and to detect the various sounds. It helps us to convert the pressure variations into electronic signals that travel through the brain with the auditory nerve.
Important Parts of Ear
Human ear has three parts namely,
Inner EarMiddle EarOuter EarThe Outer Ear
Whenever the sound waves enter our ear, they travel across the outer ear. Ear converts audible frequencies into electric signals that travel to the brain. The outer ear is known as pinna and earlobe which is the broad part and has shell-like structure. The compressions reaching the outer ear i.e. the pinna directs the compressions to the canal and makes them reach the eardrum or the membrane. The membrane being flexible separates the middle ear and the outer ear. These compressions are further amplified several times like about 20 times by the three bones inside the ear.
The Middle Ear
Bones are located in the middle part and are linked together to each other. Hammer, the Anvil, and the Stirrup are the three bones which transmit the sound. The center part of the eardrum is connected to the hammer. As the hammer vibrates, it transmits the sound to the other two bones, i.e. to the anvil and stirrup. These bones amplify the sound waves and all this takes place in the middle ear. So what is it that the outer ear does; it brings in the sound waves and further these waves are amplified by middle hear.
The Inner Ear
The inner ear known as Cochlea is a snail-like structure. As the number of variations is transmitted in the middle ear, cochlea sends the sound to the brain as some amount of fluid is present inside the cochlea. These electrical impulses then go to the auditory nerve. This is exactly what we perceive as sound.
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